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TI-2025-40746 Aliases CVE-2025-66264GHSA-hhgj-xcf6-9r3p

Unquoted Service path in UPSilon2000V6.0 SYSTEM privilege service

Priority LOW 31CWE-428Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Code execution
Confidentiality · integrity · availability
High · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-428.

Summary

The CMService.exe service runs with SYSTEM privileges and contains an unquoted service path. This allows a local attacker with write privileges to the filesystem to insert a malicious executable in the path, leading to privilege escalation.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00126 2nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MegaTec TaiwanClientMate6.2.2—No fix listedCNA
  • ClientMate VendorMegaTec Taiwan Affected 6.2.2 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-66264
  2. 2026-10-03 Alias added: GHSA-hhgj-xcf6-9r3p

References

Other 1

  • TI-2025-40748 Insecure SYSTEM Service Permissions in UPSilon2000V6.0 (RupsMon.exe) leading to trivial Local Privilege Escalation CVSS 4.0CRITICAL 9.3
  • TI-2025-40749 Unquoted Service Path in UPSilon2000V6.0(RupsMon and USBMate) running as SYSTEM CVSS 4.0HIGH 7.1
  • TI-2025-40747 Insecure permissions in configuration directory (C:\\usr) CVSS 4.0MEDIUM 6.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences